Think your getting a good deal from free product?

Think there might be a reason someone would pay you to use a product?

Wonder what else you get for "free" in power plant gypsum (coal ash, fly ash)?

This is a great article discussing the problems with power plant gypsum.

http://www.sciam.com/article.cfm?id=coal-ash-in-soil

SuperCal SO4 95% pure, has no Arsenic, and is currently under organic review.